GEORGIA Backflow Prevention Assembly Tester Actual

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GEORGIA Backflow Prevention Assembly Tester Actual Exam Test Bank Newest - /GEORGIA Backflow Prevention Assembly Tester Exam Preparation/GEORGIA Backflow Prevention Assembly Tester Practice Exam With Complete 100 Questions And Correct Answers| Brand New Version!

What is the aspirator effect? - ANSWER-Fluids are pulled (siphoned) into a pipe due to the difference in pressure and velocity of the fluid at the union of the two pipes

As velocity increases, pressure _______ - ANSWER-Decreases

Venturi - ANSWER-Device that is specifically designed to create a low pressure region in order to measure velocity or create a suction

Direct cross connections are subject to ______ and _______ - ANSWER-Backpressure and backsiphonage

Indirect cross connections are subject to ______ only - ANSWER- Backsiphonage

The purest and truest form of backflow prevention - ANSWER-Air gap

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Distance of a proper air gap - ANSWER-2 times the diameter of the pipe, no less than 1 inch

Air gaps are approved to protect against: - ANSWER-Backsiphonage,

backpressure, contaminants and pollutants

RP's are approved to protect against: - ANSWER-Backsiphonage,

backpressure, contaminants and pollutants

One limitation of a DC assembly - ANSWER-Does not give any indication of failure unless tested

DC's are approved to protect against: - ANSWER-Backsiphonage,

backpressure, pollutants

Where should a strainer be installed relative to a backflow prevention device? - ANSWER-Upstream of shut off valve #1

What kind of protection does a bypass line require? - ANSWER-Same level of protection as the main line (does not have to be the same manufacturer)

USC recommendation for installing RP's and DC's - ANSWER- Minimum of 12 inches above grade, maximum of 36 inches above grade 2 / 3

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PVB's are approved to protect against: - ANSWER-Backsiphonage,

pollutants and contaminants

PVB's must be installed _____ inches above the highest downstream point - ANSWER-12 inches

AVB's are approved to protect against: - ANSWER-Backsiphonage,

contaminants, and pollutants

AVB's must be installed ____ inches above the highest downstream point - ANSWER-6 inches

Are AVB'S approved for continuous use? - ANSWER-No - no more than 12 hours in a 24 hour period

What does SVB stand for? - ANSWER-Spill Proof Vacuum Breaker

What does HVB stand for? - ANSWER-Hose Type Vacuum Breaker (non-testable)

Can thermal expansion cause backpressure? - ANSWER-Yes

Test kit gage faces read what PSID range? - ANSWER-0-15 PSID

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